title: [EZH2 gene silenced by siRNA suppresses the growth and invasion of endometrial carcinoma cells].
abstract: OBJECTIVE
  To explore the effects on cell proliferation and invasion as well as molecular basis after suppressing EZH2 expression in endometrial carcinoma cells by using siRNAs.
  
  
  METHODS
  RT-PCR was used to examine the expression of EZH2 in endometrial carcinoma and their paracancerous tissues. SiRNAs targeting to EZH2 were transfected to endometrial carcinoma cells, and MTT, FACS, and boyden assays were utilized to examine cell proliferation, cell cycle change, and cell invasion. Finally, the molecular mechanisms of EZH2 on cell function alteration were investigated.
  
  
  RESULTS
  Compared with paracancerous tissues, increased expression trend of EZH2 mRNA was showed in endometrial carcinoma tissues. Further, knocking down EZH2 expression inhibited cell growth, cell cycle transition from G1 to S phase, and cell invasion ability. Molecular basis indicated that suppression of EZH2 downregulated the expression of E2F1 and MMP9 and upregulated tumor suppressor p21 expression.
  
  
  CONCLUSIONS
  EZH2 expression is increased in endometrial carcinoma tissues. Knocking down EZH2 expression suppresses the cell growth, cell cycle transition and cell invasion by downregulated E2F1 and MMP9, and upregulated tumor suppressor p21 expression.
authors.affiliation: Department of Obstetrics, Maternal and Child Health Hospital of Shenzhen Affiliated Southern Medical University, Shenzhen 518000, China. 13500050878@139.com
authors.forename: Lingzhi
authors.initials: L
authors.lastname: Leng
authors.forename: Qitao
authors.initials: Q
authors.lastname: Huang
authors.forename: Yunan
authors.initials: Y
authors.lastname: Dong
authors.forename: Hong
authors.initials: H
authors.lastname: Yu
authors.forename: Yan
authors.initials: Y
authors.lastname: Tian
authors.forename: Guoqing
authors.initials: G
authors.lastname: Peng
mesh_terms: D045744:Cell Line, Tumor; D049109:Cell Proliferation; D050687:E2F1 Transcription Factor / Q000378:metabolism; D016889:Endometrial Neoplasms / Q000235:genetics / Q000473:pathology*; D000071221:Enhancer of Zeste Homolog 2 Protein; D005260:Female; D016147:Genes, Tumor Suppressor; D006801:Humans; D020780:Matrix Metalloproteinase 9 / Q000378:metabolism; D063151:Polycomb Repressive Complex 2 / Q000235:genetics*; D034622:RNA Interference; D012333:RNA, Messenger / Q000235:genetics; D034741:RNA, Small Interfering; D014162:Transfection
chemical_list: D050687:E2F1 Transcription Factor; C493753:E2F1 protein, human; D012333:RNA, Messenger; D034741:RNA, Small Interfering; C498409:EZH2 protein, human; D000071221:Enhancer of Zeste Homolog 2 Protein; D063151:Polycomb Repressive Complex 2; C579270:MMP9 protein, human; D020780:Matrix Metalloproteinase 9